Question 1

In 1999 computer errors led to the loss of two NASA probes to________ .

Accepted Answer

Mars

Question 2

During the Gulf War, the U.S. Army's ________missile system failed to shoot down a Scud missile that killed 28 soldiers in Saudi Arabia.

Accepted Answer

Patriot

Question 3

To avoid a repeat of the problems plaguing the 2000 U.S. Presidential election, Congress passed the Help America Vote Act of 2002, providing states with money to replace________ .

Accepted Answer

punch card voting systems

Question 4

Which of these problems was not encountered by BAE as it tried to install an automated baggage handling system at Denver International Airport?

Accepted Answer

A)  The system misrouted luggage carts. 
B)  A key customer, United Airlines, kept changing the specifications of the system. 
C)  The bar code printers didn't print tags clearly enough to be read by the scanners. 
D)  Workers painted over electric eyes installed in the underground tunnels. 
E)  The automated baggage handlers shredded some of the luggage. 
A)  The system misrouted luggage carts. 
B)  A key customer, United Airlines, kept changing the specifications of the system. 
C)  The bar code printers didn't print tags clearly enough to be read by the scanners. 
D)  Workers painted over electric eyes installed in the underground tunnels. 
E)  The automated baggage handlers shredded some of the luggage.

Question 5

The process of determining if a model is an accurate representation of the real system is called

Accepted Answer

A)  the null hypothesis. 
B)  software engineering. 
C)  synthesis. 
D)  validation. 
E)  verification. 
A)  the null hypothesis. 
B)  software engineering. 
C)  synthesis. 
D)  validation. 
E)  verification.

Question 6

Which mistake was not made by AECL, the manufacturer of the Therac-25?

Accepted Answer

A)  It did not include software or hardware devices to detect and report overdoses. 
B)  It did not tell other hospitals about possible overdose incidents. 
C)  It reused code without proper testing. 
D)  It continued to sell the Therac-25 after the FDA declared it to be defective. 
E)  AECL made all of these mistakes, and more. 
A)  It did not include software or hardware devices to detect and report overdoses. 
B)  It did not tell other hospitals about possible overdose incidents. 
C)  It reused code without proper testing. 
D)  It continued to sell the Therac-25 after the FDA declared it to be defective. 
E)  AECL made all of these mistakes, and more.

Question 7

The process of determining if a computer program correctly implements a mathematical model is called________ .

Accepted Answer

The answer of The process of determining if a computer...

Question 8

The Mars Climate Orbiter crashed on the surface of Mars because

Accepted Answer

A)  one program output thrust in terms of foot-pounds, and another program expected thrust to be expressed in terms of newtons. 
B)  the probe lost contact with the Jet Propulsion Laboratory when it entered the Martian atmosphere. 
C)  a bug in the computer program caused the vehicle to consume too much fuel on the way to Mars, leaving an inadequate supply for landing. 
D)  the extreme cold of deep space caused the computer to crash. 
E)  before programmers went on strike at subcontractor Lockheed Martin, one of them sabotaged the flight control software. 
A)  one program output thrust in terms of foot-pounds, and another program expected thrust to be expressed in terms of newtons. 
B)  the probe lost contact with the Jet Propulsion Laboratory when it entered the Martian atmosphere. 
C)  a bug in the computer program caused the vehicle to consume too much fuel on the way to Mars, leaving an inadequate supply for landing. 
D)  the extreme cold of deep space caused the computer to crash. 
E)  before programmers went on strike at subcontractor Lockheed Martin, one of them sabotaged the flight control software.

Question 9

Between 1985 and 1987 the________ linear accelerator administered massive overdoses to six patients, causing the deaths of three of them.

Accepted Answer

The answer of Between 1985 and 1987 the________ linear accelerator...

Question 10

The AT&T long-distance network did not collapse entirely on January 15, 1990, because

Accepted Answer

A)  the U.S. Secret Service arrested the culprits before they could do any further damage. 
B)  AT&T technicians rapidly fixed the software bug in the routing switches. 
C)  MCI loaned some equipment to AT&T. 
D)  the faulty computers shut themselves off before they could do any further damage. 
E)  not all the routing switches had been converted to the latest software. 
A)  the U.S. Secret Service arrested the culprits before they could do any further damage. 
B)  AT&T technicians rapidly fixed the software bug in the routing switches. 
C)  MCI loaned some equipment to AT&T. 
D)  the faulty computers shut themselves off before they could do any further damage. 
E)  not all the routing switches had been converted to the latest software.

Question 11

A computer used as a component of a larger system is called an________ system.

Accepted Answer

The answer of A computer used as a component of...

Question 12

On the afternoon of January 15, 1990, the long distance network of________ suffered a significant disruption of service.

Accepted Answer

The answer of On the afternoon of January 15, 1990,...

Question 13

Mizuho Securities lost $225 million when

Accepted Answer

A)  hackers broke into its trading system and raided the accounts of 10,000 of its most important customers. 
B)  a bug in its billing system caused it to send out improper invoices to 10,000 of its most important customers. 
C)  a bug in its currency trading system caused it to sell yen and purchase dollars when it should have purchased yen and sold dollars. 
D)  it tried unsuccessfully to automate the Tokyo Stock Exchange. 
E)  one of its employees mistyped a sell order, and a bug in the Tokyo Stock Exchange trading program made it impossible to cancel the order. 
A)  hackers broke into its trading system and raided the accounts of 10,000 of its most important customers. 
B)  a bug in its billing system caused it to send out improper invoices to 10,000 of its most important customers. 
C)  a bug in its currency trading system caused it to sell yen and purchase dollars when it should have purchased yen and sold dollars. 
D)  it tried unsuccessfully to automate the Tokyo Stock Exchange. 
E)  one of its employees mistyped a sell order, and a bug in the Tokyo Stock Exchange trading program made it impossible to cancel the order.

Question 14

A software bug in a trading program at the ________Stock Exchange caused a securities firm to lose $225 million in 2005.

Accepted Answer

The answer of A software bug in a trading program...

Question 15

Computer simulations can

Accepted Answer

A)  accurately predict the weather a month in advance. 
B)  save automobile manufacturers time and money as they develop new cars. 
C)  prove our planet is overpopulated. 
D)  All of the above 
E)  None of the above 
A)  accurately predict the weather a month in advance. 
B)  save automobile manufacturers time and money as they develop new cars. 
C)  prove our planet is overpopulated. 
D)  All of the above 
E)  None of the above

Question 16

Software engineers use a four-step process to develop a software product. These steps are called________.________.________.________ .

Accepted Answer

specificat

Question 17

Computers that process data from sensors as events occur are called________ systems.

Accepted Answer

The answer of Computers that process data from sensors as...

Question 18

The Ariane 5 satellite launch vehicle failed because

Accepted Answer

A)  a faulty on-board computer caused the other computers in the network to crash repeatedly. 
B)  a bad sensor fed faulty information into the flight control computer, causing it to fail. 
C)  the rocket's on-board computer sent back faulty information to ground control, causing the human controllers to destroy the rocket. 
D)  code that worked correctly on the Ariane 4 failed on the Ariane 5. 
E)  a software failure caused the rocket to self-destruct when in actuality the rocket's flight was going perfectly. 
A)  a faulty on-board computer caused the other computers in the network to crash repeatedly. 
B)  a bad sensor fed faulty information into the flight control computer, causing it to fail. 
C)  the rocket's on-board computer sent back faulty information to ground control, causing the human controllers to destroy the rocket. 
D)  code that worked correctly on the Ariane 4 failed on the Ariane 5. 
E)  a software failure caused the rocket to self-destruct when in actuality the rocket's flight was going perfectly.

Question 19

The discipline focused on the production of software, as well as the development of tools, methodologies, and theories supporting software production, is most accurately called

Accepted Answer

A)  artificial intelligence. 
B)  computer engineering. 
C)  computer science. 
D)  software simulation. 
E)  software engineering. 
A)  artificial intelligence. 
B)  computer engineering. 
C)  computer science. 
D)  software simulation. 
E)  software engineering.

Question 20

By making the PDP 11 minicomputer an integral part of the Therac-25, AECL was able to

Accepted Answer

A)  reduce costs by replacing hardware safety features with software safety features. 
B)  increase the stock price of its subsidiary Digital Equipment Corporation. 
C)  shrink the size of the machine considerably. 
D)  eliminate the need for lead shielding. 
E)  All of the above 
A)  reduce costs by replacing hardware safety features with software safety features. 
B)  increase the stock price of its subsidiary Digital Equipment Corporation. 
C)  shrink the size of the machine considerably. 
D)  eliminate the need for lead shielding. 
E)  All of the above

In 1999 computer errors led to the loss of two NASA probes to________ .

During the Gulf War, the U.S. Army's ________missile system failed to shoot down a Scud missile that killed 28 soldiers in Saudi Arabia.

To avoid a repeat of the problems plaguing the 2000 U.S. Presidential election, Congress passed the Help America Vote Act of 2002, providing states with money to replace________ .

Which of these problems was not encountered by BAE as it tried to install an automated baggage handling system at Denver International Airport?

The process of determining if a model is an accurate representation of the real system is called

Which mistake was not made by AECL, the manufacturer of the Therac-25?

The process of determining if a computer program correctly implements a mathematical model is called________ .

The Mars Climate Orbiter crashed on the surface of Mars because

Between 1985 and 1987 the________ linear accelerator administered massive overdoses to six patients, causing the deaths of three of them.

The AT&T long-distance network did not collapse entirely on January 15, 1990, because

A computer used as a component of a larger system is called an________ system.

On the afternoon of January 15, 1990, the long distance network of________ suffered a significant disruption of service.

Mizuho Securities lost $225 million when

A software bug in a trading program at the ________Stock Exchange caused a securities firm to lose $225 million in 2005.

Computer simulations can

Software engineers use a four-step process to develop a software product. These steps are called... .

Computers that process data from sensors as events occur are called________ systems.

The Ariane 5 satellite launch vehicle failed because

The discipline focused on the production of software, as well as the development of tools, methodologies, and theories supporting software production, is most accurately called

By making the PDP 11 minicomputer an integral part of the Therac-25, AECL was able to

Catalysts for Chang

Introduction to Ethics

Networked Communications

Intellectual Property

Information Privacy

Privacy and the Government

Computer and Network Security

Professional Ethics

Work and Wealth

Filters

Exam 8: Computer Reliability

In 1999 computer errors led to the loss of two NASA probes to________ .

During the Gulf War, the U.S. Army's ________missile system failed to shoot down a Scud missile that killed 28 soldiers in Saudi Arabia.

To avoid a repeat of the problems plaguing the 2000 U.S. Presidential election, Congress passed the Help America Vote Act of 2002, providing states with money to replace________ .

Which of these problems was not encountered by BAE as it tried to install an automated baggage handling system at Denver International Airport?

The process of determining if a model is an accurate representation of the real system is called

Which mistake was not made by AECL, the manufacturer of the Therac-25?

The process of determining if a computer program correctly implements a mathematical model is called________ .

The Mars Climate Orbiter crashed on the surface of Mars because

Between 1985 and 1987 the________ linear accelerator administered massive overdoses to six patients, causing the deaths of three of them.

The AT&T long-distance network did not collapse entirely on January 15, 1990, because

A computer used as a component of a larger system is called an________ system.

On the afternoon of January 15, 1990, the long distance network of________ suffered a significant disruption of service.

Mizuho Securities lost $225 million when

A software bug in a trading program at the ________Stock Exchange caused a securities firm to lose $225 million in 2005.

Computer simulations can

Software engineers use a four-step process to develop a software product. These steps are called________.________.________.________ .

Computers that process data from sensors as events occur are called________ systems.

The Ariane 5 satellite launch vehicle failed because

The discipline focused on the production of software, as well as the development of tools, methodologies, and theories supporting software production, is most accurately called

By making the PDP 11 minicomputer an integral part of the Therac-25, AECL was able to

Catalysts for Chang

Introduction to Ethics

Networked Communications

Intellectual Property

Information Privacy

Privacy and the Government

Computer and Network Security

Professional Ethics

Work and Wealth

Filters

Software engineers use a four-step process to develop a software product. These steps are called... .